He is only too ready to help others, sel
题型:选择题
问题:
He is only too ready to help others, seldom, _____ , refusing them when they turn to him.
A.if not
B.if never
C.if any
D.if ever
He is only too ready to help others, seldom, _____ , refusing them when they turn to him.
A.if not
B.if never
C.if any
D.if ever